66753580 ÷ 503 
We want to divide 66753580 by 503.

Going ahead to step 1:
6 divided by 503 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 503

Advancing to step 2:
503 goes into 66 0 times with a remainder of 66.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Append the next digit (7) from the dividend to 66 and continue with: 667 / 503

Going ahead to step 3:
The number 503 fits into 667 1 times, leaving a remainder of 164.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 503 from 667 leaves us with 164.
Take the next digit (5) from the dividend and append it to 164, then repeat: 1645 / 503

Advancing to step 4:
1645 divided by 503 is 3 with a remainder of 136.
Write down 3 as next digit of the result. 
Result so far: 13.0
Deduct 1509 from 1645 and we're left with 136.
Grab the next digit (3) from the dividend, add it to 136, then carry on: 1363 / 503

Going ahead to step 5:
503 goes into 1363 2 times with a remainder of 357.
Put 2 as the next digit of the answer. 
Result so far: 132.0
The remainder is 357 after subtracting 1006 from 1363.
Bring next digit (5) of the dividend behind the 357 and repeat the process: 3575 / 503

Step 6:
503 goes into 3575 7 times with a remainder of 54.
The number 7 becomes the next digit in our result. 
Result so far: 1327.0
If we subtract 3521 from 3575, we get 54.
Take the next digit (8) from the dividend and append it to 54, then repeat: 548 / 503

Moving on to step 7:
503 can be fit into 548 1 times, resulting in a remainder of 45.
The next digit of our result is 1. 
Result so far: 13271.0
Subtracting 503 from 548 leaves us with 45.
Include the next digit (0) from the dividend after 45, then repeat: 450 / 503

Moving on to step 8:
When dividing 450 by 503, we get 0 with a remainder of 450.
The number 0 becomes the next digit in our result. 
Result so far: 132710.0
If we subtract 0 from 450, we get 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Going ahead to step 9:
The number 503 fits into 4500 8 times, leaving a remainder of 476.
The number 8 becomes the next digit in our result. 
Result so far: 132710.8
If we subtract 4024 from 4500, we get 476.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

Going ahead to step 10:
The number 503 fits into 4760 9 times, leaving a remainder of 233.
Write down 9 as next digit of the result. 
Result so far: 132710.89
The remainder is 233 after subtracting 4527 from 4760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2330, and continue the process.

Let's proceed to step 11:
503 goes into 2330 4 times with a remainder of 318.
Use 4 as the next digit of our solution. 
Result so far: 132710.894
If we take 2012 away from 2330, we end up with 318.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3180, and continue the process.

Going ahead to step 12:
The number 503 fits into 3180 6 times, leaving a remainder of 162.
The number 6 becomes the next digit in our result. 
Result so far: 132710.8946
If we take 3018 away from 3180, we end up with 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Let's proceed to step 13:
If we divide 1620 by 503, we get 3 and a remainder of 111.
Record the quotient 3 as the next digit in the result. 
Result so far: 132710.89463
Subtract 1509 from 1620 to get 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

Let's proceed to step 14:
If we divide 1110 by 503, we get 2 and a remainder of 104.
Put 2 as the next digit of the answer. 
Result so far: 132710.894632
The remainder is 104 after subtracting 1006 from 1110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Going ahead to step 15:
503 can be fit into 1040 2 times, resulting in a remainder of 34.
Use 2 as the next digit of our solution. 
Result so far: 132710.8946322
Subtracting 1006 from 1040 leaves us with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

The final result is 132710.8946322 with a remainder of 3.4e-07.